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E. M. LANDIS. CARBURETER. APPLICATION FILED JAN.6.1919.

1,369,250. Patented Feb. 22, 1921.

EDWARD M. LANDIS, OF TOLEDO, OHIO.

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Specification of ietters Patent.

Patented Feb. 22, 1921.

Application filed January 6, 1919. Serial No. 269,875.

To all whom it may concern.-

Be it known that I, EDWARD M. LANDIS, a citizen of the United States ofAmerica, residing at Toledo, Lucas county, Ohio, have invented new anduseful Carburetors, of which the following is a specification.

This invention relates to fuel supply mechanisms.

This invention has utility when incorporated in apparatus forcontrolling the supply of a vaporizable liquid, especially fuel forinternal combustion motors.

Referring to the drawings:

Figure 1 is a side elevation, with parts broken away, of an embodimentof the invention in a carbureterfor an internal combustion motor of agasolene automobile; and

Fig. 2 is a fragmentary plan view of the fuel delivery pad of thecarbureter of The primary and auxiliary air may be heated by the'warmedcylinders of the motor or by the exhaust from such cylinders.

Such warm air may enter main air duct 1 which is provided with a branchopening 2 in communication with primary air duct 3. In this instance theduct 3 extends down to a basal enlargement or horizontal flare formingthe top or upper wall member 4 which opposes the lower platform member5, the area therebetween serving as a spread out fuel delivery region.The member 5 rests on ledge 6 at the top of reservoir 7. As a simpleconvenient form, the reservoir 7 is circular and has a lateral extensionproviding a liquid fuel inlet duct 8' controlled by needle valve 9 ofring float 10. Depending as a skirting from the member 5 and extendingcentrally through the float 10, is a flange 11 having lateral openings12 adjacent the bottom of the reservoir 7 so that liquid fuel admittedpast the inlet 8 into the reservoir 7 by the float 10 may freely flow tothe central chamber formed by the reservoir 7 and the flange 11. A capnut 13 is used to hold together the member 5 and the reservoir 7.

The reservoir 7 has vent or opening 14 providing communication betweenthe float chamber of the'reservoir and the atmosphere, the o ening beingremote above the float 10. apillary conductor means, as felt 15, mayserve for lifting the liquid fuel from the reservoir 7 to pad 16 on thecentral region of the platform member 5,

- sageway thereacross.

to form a vaporization region. While the open structure of the pad 16,which may also be of felt, may not permit very ready travel of aircurrents therethrough, positive means is provided to permit an air pas-This passageway is 1n communication with the spread out orextended'vaporization area on the member 5 opposing the flare member 4.This positive means is preferably. wire cloth 17 of say meshes to theinch, which readily insures kee throughout its area in assembling asthreads 18 of member 5 coact with carburetor main housing 19 to bringthe cloth 17 against shoulder 20. Furthermore the cloth 17 abutted bythe flare member 4 is held flat on the pad 16, and positively keeps theflare member 4 spaced from the pad 16 thereby providing the restrictedreglon for draft of'air across the upper face of the saturated pad, withresulting fuel removal therefrom in gaseous form. This air carrying fueltherewith asses to delivery passage or chamber 21. pring 22 in thechamber 21 normally holds the flare member 4 in position against thecloth 17, but in the extremely remote possibility of any clogging overthe pad 16', the spring 22 may act to permit the slight lifting of themem ber 4 away from the platform 5 for vaporization to-be carried on. Itwill thus be seen that the air drawn through the carbureter by themotorin passing between the flare member 4 and platform 5 is compelledto travel against the pad 16 and in so do-. ing removes'volatile fueltherefrom.

Threaded portion 23 of the carburetor housing 19 just above the chamber21 receives threaded enlarged end 24 of tubular member 25. The lowerportion of this member 25, concentric with and surrounding the duct 3,is spaced from the duct 3 to provide annular passageway 26 from thechamber 21 to annular series of openings 27, which may be restricted byflange 28 rising from thethreaded portion 23 of the housing 19. Thecoaction of openings 27 under the ledge of the enlargement 24 with theflange 28 as controlled by the screwing of the member 25 into thehousing 19, produces an adjustable valve for controlling the flow of thefuel carrying air from the fuel delivery region of cloth 17. Mixed fueland air main delivery duct 29 is the passageway with which the openings28 ping the pad 16' in position washer 37 in packing position.

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communicate. In this duct 29 is main throttle or butterfly valve 30 onshaft 31 having operating crank 32 with control means extendingtherefrom as desired. The duct 29 in this instance is shown as an 1.fitting having threaded portion 33 coacting with threaded portion 34 ofthe hous ing member 19, and lock nut 35 which is used for firmly holdingthe l..-duct 29 in the desired angular relation as to the axis of thecarburetor housing.

This l fitting 29 has alined with its connection to the housing 19 anopening 36 as a guide for the member 25, which opening may be packed tominimize or preclude air dilution of the adjusted mixture, by providingcompressible packing or felt washer 37, collar 38 as a holder for thewasher, a spring 39 coacting between the collar 38 and fixed collar 40for yieldably holding the felt For rotating the member 25 from a remotecontrol position and thereby adjustthe valve provided by openings 27adjacent the flange28, a crank arm 41 may be connected to the member 25adjacent the collar 40, the angular position of which crank arm 41 maybe shifted by positioning it above the spring 39 for clamping by binchngits care 42 with a screw 43 to hold it to rotate on the member 25.

The main warmed air supply duct 1 after passing the branch for primaryair, as pro vided by the duct 3, serves as auxiliary warmed air supplypassage and has therein first a check valve comprising a disk 44, havingstem 45, extending through guide bearing 46 of spider 47 carried by theduct 49. Helical spring 48 abutting the bearing 46, surrounding stem andheld thereon by crosspin or key 48 yieldably holds the disk 44 in closedposition to preclude reversal of airflow in the duct 1, while readilyopening for normal warmed air direction flow from past the branch duct3, to past this check valve 44. Just beyond this valve 44, there isauxiliary air duct section 49 having enlarged portion 50 with an annularseries of lateral openings 51, embraced by a circularly shiftable band52 having openings 53 therein which may be shifted more or less intoregistry with the openings 51, thereby providing avalve for controllingthe supply of unwarmed air for diluting the warm air, as supplied by theauxiliary air duct; The check valve 44 precludes travel tween the collarin operation, primary warmed an may- 1,see,eeo

assembling this section 49 to its adjacent member in assembly, in asimilar manner as the connections on each side of the L-fitting 1.

This clamping of the section 49 may be upon a tubular member having amedial annular operating collar 61, so that with the clamp released, themember 60 may be rotated for its threaded portion 62 to coact withthreaded portion 63 of the member 19, thereby adjusting the position ofthe inner end or seat 64 of the member 60 as to check valve disk 65. Themember 19 provides a chamber 66 with which the member 69 is incommunication and which surrounds the chamber 21 for delivery of air bypassage 67 past the openings 27 for a thorough dilution of thisrichvapor fuel laden air.

Concentrically disposed and in opposition to the member 60 the housing19 has a stem 68 provided with a head 69. The disk is loosely mounted onthis stem 68 and yieldably held toward the head 69 by coil spring 70abutting sleeve 71 having threaded engagement with the housing 19 and inwhich sleeve 71 the stem 68 is threaded. Accordingly the compression'ofthe spring 70 is readily adjusted. A lock nut '72 may hold the sleeve 71to the housing 19. .1. look" may hold the stem 68 to the sleeve 71.justing the disk 65 to the seat 64, allows regulated amount of auxiliaryair to flow readily, for the check valve 44 has very slight resistanceto proper flow of air. creased intake suction may further open the valve65 by overcoming the adjusted resistance of the spring 70, thusautomatically determining the dilution of the primary fuel laden air;

11s the member 25 is packed to the housing 19, the duct 3 is also packedto the member 25 by washer 74, which may be of felt, held in shape byloose collar 7 5 yieldably forced into position by helical spring 7 6about the duct 3 and coacting be- 7 5 and the duct 1.

pass from the duct 1, into duct 3, become laden with fuel in passingover the pad16 at a rate regulated by openings 27 to the flange 28, andin passing out such openings 27, it is thoroughly mixed with theauxiliary air, coming from the duct 1, past the check valve 44,receiving unwarmed air passing butterfly valve 54, to flow past theadjustable check valve 65. While fuel variation or heavy fuel may behandled satisfactorily, for so-called gasolene ranging in the sixtiesBaume gravity, the carbureter develops a superiority of action, not onlyin great mileage per gallon of fuel, but in insuring regularity of motoroperationover a great range of speeds. On starting, as the air is ladenwith gaseous fuel, there is no flooding of the motor. The motor may takeup a load without delay incidental. to warming up. There is a reservepower available for handling even quickl applied loads and handling suchloads wit out a cylinder of fuel missing explosion and with no necessityfor changing the gears in motor vehicle operation. Vhile the greatranges of regulation to respond to all conditions of fuels and motorsare provided, with the desired adjustment, throttle control is usuallyall that is necessary, for atmospheric disturbances are almosteliminated.

What is claimed and it is desired to secure by Letters Patent is:

1. A carbureter comprising a capillary supply region; a member providinga surface opposing said region to provide between said member andcapillary supply region a space for an extended sheet of a thin film ofair directed to travel along and into the capillary supply region andtake up fuel therefrom, conducting means providing a supply way for airto one side of the member adjacent the capillary region, and deliverymeans from the opposite side of the member for conducting the fuelcarrying air away from the capillary supply region.

2. A carbureter comprising an air supply way, housing means providingapair of opposing walls, porous liquid fuelconducting means embraced bysaid walls'to provide passage from said way as a deflecting meansdirecting air into and over said means as an extended thin sheet of filmbetween the conducting means and the deflecting means, and a deliveryway for receiving the fuel charged an from said means.

3. A carbureter comprising air supply and delivery ways, housing meansproviding a wall from and to one side of which Wall said waysrespectively extend, a member opposing said wall between said ways, andliquid fuel dispersing porous capillary conducting means'between themember and wall as an extended sheet film forming and maintaining regionin the interval between the supply and delivery ways for effecting fueltake-up by air from the supply way in a dispersed film travel betweenthe member and capillary conducting means over and into said means tothe delivery way independent of passage through said means.

4. A carbureter, and housing providing a member having an air deflectingway therethrough having a fuel dispersing device in- V eluding anextended surface providing capillary conductor region thereto and overwhich the air is directed between the deflecting member and conductorregion independently of being drawn therethrough, for taking up liquidfuel as a vapor in said air.

In witness whereof I afiix m signature.

EDWARD M. ANDIS.

